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Cambridge Audio Azur 540R V2.0 AV Receiver
Main Board - Power Supply PCB Schematic
R239
100
R240
100
D43
1N4001
+
C107
330U/63
R241
3.3K/1W
D42
1N4570(27V)
+
C104
47U/35
D41
6C2
+ C103
10U/50
1
2
CN8
2P(2.5)
1
2
3
CN4
3P(3.96)
+5V
GND
~5.5V
~5.5V
GND
-27V
+
AC2
-
AC1
BL1
MB252
C97
104M
C98
104M
FH1
T12AL 250V
FH2
T12AL 250V
-55V
+55V
R235
RF/0.22/1W
R242
RF/0.22/1W
+
AC2
-
AC1
BL2
DB101G
+C106
1000U/25
C105
104M
I
1
G
2
O
3
IC1
7805
+C102
47U/16
1
2
3
2
1
2
1
2
1
TO VIDEO BRD
3
2
1
~13V
~15V
~32V
~32V
~4.2V
~14V
TO
DISPLAY
BRD
INDICATES SAFETY CRITICAL COMPONENTS.
TO REDUCE THE RISK OF ELECTRIC SHOCK LEAKAGE
CURRENT OR RESISTANCE MEASUREMENTS SHALL BE
CARRIED OUT(EXPOSED PARTS ARE ACCEPTABLY
INSULATED FROM THE SUPPLY CIRCUIT) BEFORE
THE APPLIANCE RETURNED TO THE CUSTOMER.
+C101
470U/25
FAN+15V
+ C96
470U/25
RELAY+15V
1
2
CN9
2P(2.5)
2
1
2
1
TO FUSE BRD
D+5V
500mA
1.5A
4A
4A
250mA
200mA
1
2
3
CN11
3P(2.0)
R230
820
R231
270
R232
1.2K
Q85
2SC1627A-Y
FAN+15V
1
2
M
FAN
FAN DRIVER
RT1
02DSB282J
TEMP SENSOR
+5V
TO
FUSE
BRD
+14V
ON/OFF
GND
3
2
1
~16.5V
~16.5V
1.5A
1.5A
~7.5V
1.5A
5
4
TO DEODER BRD
5P2.5
TO FUSE BRD
2P2.5
Q87
C2458
R245
22K
R246
100K
R247
22K
R249
15K
R248
680K
+
C109
2200U/10
SYS-MUTE
-55V
D44
1N4001
R243
4.7K
R244
470
+C108
22U/25
Q86
A1015
RELAY-STOP
1
2
CN3
2P(2.0)
1
2
CN1
2P(2.5)
1
2
3
4
5
6
CN5
6P(2.0)
P-ON/OFF
SYS MUTE
M-RELAY
GND
MUTE-DELAY
FROM
DECODER
PH-DET
PH-DET
Rto-FUSE
125 C 2A250VAC
R104
10K
R101
6.2K
over load
PRO-TEST
OVER LOAD PROTECT
+
C40
4.7U/25
R26
1K
C42
104
Connected to bottom of cabinet
+14V
VIDEO3 board
2
G2
3
G3
1
G1
G5
G4
JK9
AV3-8.4-14
R117
220
R123
220
R124
47K
R126
47K
C81
330P
C82
330P
GND
C94
104
VIDEO IN
C141
104
L IN
C142
470P
AGND
1
2
CN22
2P(2.0)
R IN
1
2
3
CN21
3P(2.0)
CE
R42
10/1W
R234
4.7/1W
Q17
C2458
R131
22K
Q38
A1015
1
2
3
4
5
6
7
CN10
7P(2.0)
D45
1N4148
D6
1N4148
Q88
C2878
D7
1N4148
D26
1N4001
R164
22K
R173
4.7K
R165
1K
+5V
1
2
CN6
2P(2.5)
D29
1N4148
1
2
3
4
CN17
4P(2.0)
PH-R
PH-L
PH-DET
PH-R
PH-L
GND
PH-DET
TO EarPHONE BOARD
C99
10000U/63
C100
10000U/63
R174
100K
R176
33K
C121
47UF/25V
C131
10UF/16
D33
1N4148
D32
1N4148
D39
1N4001
D40
1N4001
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